mirror of
https://github.com/tahoe-lafs/tahoe-lafs.git
synced 2024-12-27 08:22:32 +00:00
99 lines
2.5 KiB
Python
99 lines
2.5 KiB
Python
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from zope.interface import implements
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from twisted.internet import defer
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from allmydata.interfaces import IFileNode, IFileURI, IURI
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from allmydata import uri
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class FileNode:
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implements(IFileNode)
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def __init__(self, uri, client):
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u = IFileURI(uri)
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self.uri = u.to_string()
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self._client = client
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def get_uri(self):
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return self.uri
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def is_readonly(self):
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return True
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def get_readonly_uri(self):
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return self.uri
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def get_size(self):
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return IFileURI(self.uri).get_size()
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def __hash__(self):
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return hash((self.__class__, self.uri))
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def __cmp__(self, them):
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if cmp(type(self), type(them)):
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return cmp(type(self), type(them))
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if cmp(self.__class__, them.__class__):
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return cmp(self.__class__, them.__class__)
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return cmp(self.uri, them.uri)
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def get_verifier(self):
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return IFileURI(self.uri).get_verifier()
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def check(self):
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verifier = self.get_verifier()
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return self._client.getServiceNamed("checker").check(verifier)
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def download(self, target):
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downloader = self._client.getServiceNamed("downloader")
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return downloader.download(self.uri, target)
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def download_to_data(self):
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downloader = self._client.getServiceNamed("downloader")
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return downloader.download_to_data(self.uri)
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class LiteralFileNode:
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implements(IFileNode)
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def __init__(self, my_uri, client):
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u = IFileURI(my_uri)
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assert isinstance(u, uri.LiteralFileURI)
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self.uri = u.to_string()
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self._client = client
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def get_uri(self):
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return self.uri
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def is_readonly(self):
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return True
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def get_readonly_uri(self):
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return self.uri
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def get_size(self):
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return len(IURI(self.uri).data)
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def __hash__(self):
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return hash((self.__class__, self.uri))
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def __cmp__(self, them):
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if cmp(type(self), type(them)):
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return cmp(type(self), type(them))
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if cmp(self.__class__, them.__class__):
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return cmp(self.__class__, them.__class__)
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return cmp(self.uri, them.uri)
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def get_verifier(self):
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return None
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def check(self):
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return None
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def download(self, target):
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data = IURI(self.uri).data
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target.open(len(data))
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target.write(data)
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target.close()
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return defer.maybeDeferred(target.finish)
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def download_to_data(self):
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data = IURI(self.uri).data
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return defer.succeed(data)
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